The blue chip index closed up 0.4 per cent at 6,635.45 points, continuing its recovery from 15-month lows in October and marking its highest level in around one-and-a-half months.
Carnival rose 2.8 per cent to 2,606.p, the best-performing FTSE stock in percentage terms, while British Airways operator International Consolidated Airlines Group also advanced two per cent to 420p as it benefited from a new fall in the price of oil.
Brent crude fell to a four-year low yesterday to below $79 a barrel.
However, this was negative for oil producers, with Tullow Oil declining by 5.8 per cent to close at 464p.
Dixons Carphone was the best-performing FTSE stock in percentage terms, rising 2.3 per cent to 413.50p, which traders attributed to expectations it could do well during the Christmas season.